1. Community Development Unit of the Department of Adult Education and Extra-Mural Studies, University of Nigeria, Nsukka, Enugu State, Nigeria
2. Department of Microbiology, Federal University of Agriculture, Makurdi, Benue State, Nigeria
3. Department of Microbiology, University of Nigeria, Nsukka, Enugu State, Nigeria
4. Community Development Unit of the Department of Continuing Education and Development Studies, University of Calabar, Calabar, Cross River State, Nigeria
5. Administration Unit of the Department of Adult Education and Extra-Mural Studies, University of Nigeria, Nsukka, Enugu State, Nigeria.